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Occupational Therapist in Private Practice

Melissa M. De Unamuno, OT

Sees patients in Fremont, CA · California

Summary

Melissa M. De Unamuno, OT is an occupational therapist at 39141 Civic Ctr Dr, Suite 120, Fremont, CA 94538. Phone: (510) 794-9672. Accepts Medicare assignment. In 2024, Melissa M. De Unamuno had 47 Original Medicare patients and 971 services. NPI 1245256056. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Occupational therapist (Medicare lists Occupational Therapist in Private Practice)
  • Address: 39141 Civic Ctr Dr, Suite 120, Fremont, CA 94538 · Directions
  • Phone: (510) 794‑9672
  • Medicare: Accepts Medicare assignment
  • Group practice: Washington Outpatient Rehabilitation Center a Joint Venture
  • School: graduated 2002
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Melissa M. De Unamuno, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Melissa M. De Unamuno accept Medicare assignment?
Yes. Medicare's clinician data says Melissa M. De Unamuno accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Melissa M. De Unamuno see?
In 2024, CMS data shows 47 Original Medicare patients and 971 services for Melissa M. De Unamuno. This counts Original Medicare only and measures volume, not quality.
What is Melissa M. De Unamuno's NPI number?
1245256056. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Melissa M. De Unamuno, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients47
Services billed to Medicare971
Different services or procedures7
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Therapy procedure using functional activities (97530)324 services
  2. Electrical stimulation (unattended), to one or more areas for indication(s) other than wound care, as part of a therapy plan of care (G0283)292 services
  3. Therapy procedure using manual technique, each 15 minutes (97140)289 services
  4. Training in the use of orthopedic device for arm, leg and/or trunk, each 15 minutes (97760)22 services
  5. Evaluation for occupational therapy, typically 45 minutes (97166)21 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol75%
  • High blood pressure74%
  • Arthritis60%
  • Diabetes38%
  • Chronic kidney disease36%
  • Osteoporosis34%

Practice locations

Addresses where Melissa M. De Unamuno is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Melissa M. De Unamuno as a member of this group (CMS data updated October 2, 2026).

  • Washington Outpatient Rehabilitation Center a Joint Venture10 clinicians in the group

Specialties

Find other clinicians: Occupational Therapist in Private Practice, California →

Other occupational therapists in Fremont

Clinicians with the same Medicare primary specialty in Fremont, CA — not a recommendation.

All occupational therapists in Fremont →

Other clinicians in Washington Outpatient Rehabilitation Center a Joint Venture

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialOT
Graduation year2002
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1245256056
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians